/*
 *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */
#ifndef TEST_TEST_VIDEO_CAPTURER_H_
#define TEST_TEST_VIDEO_CAPTURER_H_

#include <stddef.h>

#include <memory>

#include "api/video/video_frame.h"
#include "api/video/video_source_interface.h"
#include "media/base/video_adapter.h"
#include "media/base/video_broadcaster.h"
#include "rtc_base/synchronization/mutex.h"
using namespace webrtc;
class VideoCapturer: public rtc::VideoSourceInterface<VideoFrame> {
public:
    class FramePreprocessor {
    public:
        virtual ~FramePreprocessor() = default;

        virtual VideoFrame Preprocess(const VideoFrame& frame) = 0;
    };

    ~VideoCapturer() override;

    void AddOrUpdateSink(rtc::VideoSinkInterface<VideoFrame>* sink,
                         const rtc::VideoSinkWants& wants) override;
    void RemoveSink(rtc::VideoSinkInterface<VideoFrame>* sink) override;
    void SetFramePreprocessor(std::unique_ptr<FramePreprocessor> preprocessor) {
        MutexLock lock(&lock_);
        preprocessor_ = std::move(preprocessor);
    }

protected:
    void OnFrame(const VideoFrame& frame);
    rtc::VideoSinkWants GetSinkWants();

private:
    void UpdateVideoAdapter();
    VideoFrame MaybePreprocess(const VideoFrame& frame);

    Mutex lock_;
    std::unique_ptr<FramePreprocessor> preprocessor_ RTC_GUARDED_BY(lock_);
    rtc::VideoBroadcaster broadcaster_;
    cricket::VideoAdapter video_adapter_;
};

#endif  // TEST_TEST_VIDEO_CAPTURER_H_
